Multilingualism in Linked Data G.Aguado J. Gracia A. Gmez-Prez E. - - PowerPoint PPT Presentation

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Multilingualism in Linked Data G.Aguado J. Gracia A. Gmez-Prez E. - - PowerPoint PPT Presentation

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Multilingualism in Linked Data G.Aguado J. Gracia A. Gmez-Prez E. Montiel- D. Vila Ponsoda Ontology Engineering Group (OEG) Artificial Intelligence Department Universidad Politcnica de Madrid (UPM) W3C Multilingual Web Workshop

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Multilingualism in Linked Data

Ontology Engineering Group (OEG) Artificial Intelligence Department Universidad Politécnica de Madrid (UPM)

W3C Multilingual Web Workshop Rome, 12-13 March 2013

G.Aguado

  • J. Gracia
  • A. Gómez-Pérez
  • E. Montiel-

Ponsoda

  • D. Vila
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Foundations: the model, the data, URIs and links

RDF(S) models (ontologies) and data

Cer

El Quijote Cervantes Is creator of

Cer

Work Person Is creator of

Is a Is a

Unique identifiers: URI

identify or name a resource

http://datos.bne.es/resource/XX1718747 http://datos.bne.es/resource/XX3383563 http://iflastandards.info/ns/fr/frbr/frbrer/C1005 http://iflastandards.info/ns/fr/frbr/frbrer/C1001

Equivalence links to other datasets

Same As

http://viaf.org/viaf/17220427

Cervantes

Same As Same As

http://dbpedia.org/resource/Miguel_de_Cervantes

Cervantes

Ontology Data

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Sources of information in different languages

Geographical ¡ Informa1on ¡ shp2RDF ¡ REST ¡service ¡ annota1on ¡ Web ¡2.0 ¡ Library ¡and ¡ Cultural ¡ Heritage ¡ Diverse ¡Informa1on ¡ Sensor Networks data

RDF Generation and Linking

Geographical Visualization Linked Library Data Visualisation Sensor Data Visualisation

Visualization

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Observatory of the Multilingual Web of Data

  • Analysis of BTC datasets

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  • Analyzed literals: 1,072,386,405
  • Total literals with lang tag: 116,058,734
  • % Literals with lang tag: 10.822 %
  • % Literals tagged as English: 94.68 %

2011

  • Analyzed literals: 543,933,327
  • Total literals with lang tag: 304,115,676
  • % Literals with lang tag: 55.91 %
  • % Literals tagged as English: 94.44 %

2012

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

1 100 10000 1000000 100000000 English French German English US Spanish Rumanian Swedish Chinese Hungarian 2011 2012

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A motivating example for using multilingual LD [1]

“Dame farmacias de guardia en Colonia que tengan Beglan” (*)

Medicine catalog

German chemists Cities

Köln Serevent

(*) Give me the duty chemists in Cologne having Beglan

[1] J. Gracia, E. M. Ponsoda, P. Cimiano, A. G. Pérez, P. Buitelaar, and J. McCrae, "Challenges for the multilingual Web of Data," Journal of Web Semantics

5 Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Multilingualism and the Linked Data Process [2]

Specification Modelling RDF Generation Publication Links Generation Exploitation

  • Monolingual or multilingual data resources
  • DB, documents, tables, etc.
  • Linguistic resources: Dictionaries, Lexicons, Thesauri, etc.
  • Ontology(TBox URIs)

http://phenomenontology.linkeddata.es/ontology/Municipio http://iflastandards.info/ns/fr/frbr/frbrer/C1005

  • Data (ABox URIs)

http://geo.linkeddata.es/resource/Municipio/Madrid http://datos.bne.es/resource/XX1718747

[2] Villazón-Terrazas, B. et al., Methodological Guidelines for Publishing Government Linked Data. In D. Wood, ed. Linking Government Data. Springer.

6 Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Specification Modelling RDF Generation Publication Links Generation Exploitation

How can we adapt and translate the lexical/ terminological layer of an existent ontology into other languages?

Multilingual labeling approach if languages involved share a single view

  • n a certain domain

Ontology Localization Algorithms

Cross-lingual linking approach if independent monolingual

  • ntologies exist that cover same or

similar subject domain (Problems: conceptualization mismatches, or granularity and viewpoint differences)

Cross-lingual Mapping Algorithms

Multilingualism and the Linked Data Process

7 Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Multilingualism and the Linked Data Process How to represent multilingual Linked Data?

§ Traditional annotation properties for most cases § Richer models for more demanding applications

LexInfo

dbpedia:Miguel_de_Cervantes rdfs:label "Miguel de Cervantes"@es . "ミゲル・デ・セルバンテス"@ja . "미겔 데 세르반테스"@ko .

LIR

SKOS-XL

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Specification Modelling RDF Generation Publication Links Generation Exploitation

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Main issues of cross-lingual linking How to discover cross-lingual links ? How to represent cross-lingual links? How to store and reuse cross-lingual links?

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Specification Modelling RDF Generation Publication Links Generation Exploitation

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Multilingualism and the Linked Data Process

Specification Modelling RDF Generation Publication Links Generation Exploitation

How to discover correspondences between ontologies and between LD expressed in different natural languages?

Health ¡

  • ntology ¡

Medicines catalog Health ¡ ¡ontology ¡ Medicines catalog Cross-lingual links Cross-lingual links

Beglan salmeterol salmeterol inhalador der Inhalator Medikament medicamento rdfs:type rdfs:type Arzneistoff via principio activo via Serevent

10 Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Cross-lingual Link Discovery

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Specification Modelling RDF Generation Publication Links Generation Exploitation

  • nto2

Monolingual OM Translation

  • nto1
  • nto1’

Alignment

  • 1. Projecting lexical content of the ontology into a common

language, then applying traditional OM techniques 2. Comparing ontology entities directly by means of cross- lingual semantic measures (see CIDER-CL) Cross-lingual OM

  • nto1
  • nto2

Alignment

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Cross-lingual Link Storage and Reuse

  • Links can be discovered:

§ runtime -> need of scalable techniques § offline -> need of storage methods

  • Storage

§ Following Linked Data principles § Links can be stored jointly to some of the data sources that they relate (e.g., during LD generation) § Links can be stored in separate repositories to be accessed by semantic applications (e.g., for CL-Question Answering)

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Specification Modelling RDF Generation Publication Links Generation Exploitation

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Multilingualism and the Linked Data Process How can a user pose questions in their own language to be processed against the web of Linked Data?

Specification Modelling RDF Generation Publication Links Generation Exploitation

Semantic query

“Colonia” “farmacia”

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  • 1. Multilingual query interpretation
  • 2. Query federation, ...

How should the results of a semantic query be adapted to

the linguistic and cultural background of a user?

  • 1. Adaptation and localization of user interfaces
  • 2. Natural language generation
  • 3. Presentation views to specific linguistic and cultural contexts

Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Services for the Multilingual Web of Data

Services ¡for ¡cross-­‑lingual ¡access ¡

Users ¡ Data ¡silos ¡

... ¡

Services ¡for ¡genera8ng ¡mul8lingual ¡Linked ¡Data ¡ ¡

Mul8lingual ¡ ¡ linguis8c ¡ ¡ informa8on ¡

Services ¡for ¡ ¡cross-­‑lingual ¡linkage ¡

Mul8lingual ¡ mappings ¡ Linked ¡Data ¡

Services ¡for ¡ ¡transla8on ¡and ¡

  • ntology ¡localiza8on ¡

14 Asuncion Gomez-Perez Multilingualism in Linked Data. W3C Multilingual Web Workshop. Rome March 2013.

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Thanks for your attention !

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Research agenda on Multilingual LD at OEG

  • Ontology lexica representation

Elena Montiel, Lupe Aguado

  • Lexico-syntactic patterns

Elena Montiel, Lupe Aguado

  • Ontology localisation (translation)

Elena Montiel, Jorge Gracia, Asun Gomez-Perez

  • Exploratory analysis of the Multilingual Web of Data

Daniel Vila, Asun Gómez-Pérez, Jorge Gracia

  • Cross-lingual ontology and Instance matching

Jorge Gracia, Daniel Vila

  • Query federation

Oscar Corcho

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